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Finding the Fourth Proportional to 577,140.85, 796,440.47 and 315,484.53

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Solution

The fourth proportional to 577,140.85, 796,440.47 and 315,484.53 is: 435,361.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,140.85 : 796,440.47 = 315,484.53 : x
  2. Step 2: Convert to fraction form
    577,140.85/796,440.47 = 315,484.53/x
  3. Step 3: Cross multiply
    577,140.85x = 796,440.47 × 315,484.53
  4. Step 4: Simplify right side
    577,140.85x = 251,264,647,350.93
  5. Step 5: Solve for x
    x = 251,264,647,350.93/577,140.85
  6. Step 6: Final answer
    x = 435,361.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.